SpaceX delivers Starlink satellites to orbit despite engine failure
https://spaceflightnow.com/2020/03/13/falcon-9-starlink-5-mission-status-center/
Today's mission marked the first in-flight Merlin engine failure since a Falcon 9 launch in 2012. On that mission, the rocket continued into orbit with a Dragon supply ship heading for the International Space Station, but an Orbcomm satellite riding as a hitchhiker payload was lost.
Elon Musk, SpaceX's founder, CEO and chief designer, says one of the Falcon 9's first stage engines shut down prematurely during ascent this morning.
Yeah. There was also an early engine shutdown on ascent, but it didn’t affect orbit insertion. Shows value of having 9 engines! Thorough investigation needed before next mission.
— Elon Musk (@elonmusk) March 18, 2020
https://spaceflightnow.com/2020/03/13/falcon-9-starlink-5-mission-status-center/